ultra-long wave

例句：

1. 1.The ultra-long wave radar system is used to detect the location of ships in the ocean.
   超长波雷达系统用于探测海洋中船只的位置。
2. 2. The ultra-long wave technology has been applied to various fields, such as communication and navigation.
   超长波技术已被应用于通信和导航等领域。
3. 3.The ultra-long wave signal can travel long distances without interference from other signals.
   超长波信号可以在不受到其他信号干扰的情况下传播很远的距离。